Whether unmanaged files should be p

Whether unmanaged files should be purged. This option only makes sense when managing directories with recurse => true.

When recursively duplicating an entire directory with the source attribute, purge => true will automatically purge any files that are not in the source directory.
When managing files in a directory as individual resources, setting purge => true will purge any files that aren’t being specifically managed.
If you have a filebucket configured, the purged files will be uploaded, but if you do not, this will destroy data.